UNIFAC Consortium: Actual stage of development

27.10.2017 13:36:55

The following table shows the actual stage of development of the UNIFAC Consortium model matrices for all four supported models UNIFAC, modified UNIFAC (Do), PSRK and VTPR compared to the published parameters.

Method

UNIFAC Consortium

Published

Main Groups

Parameter Pairs

Parameter Pairs

Main Groups

Total

New in 2017

Revisedin total

UNIFAC

71

1150

25

─

635

50

mod. UNIFAC (Do)

106 + 3 new

1790

66 + 16 revised

296

755

61

mod. UNIFAC (Do), based on COSMO-RS (Ol)

─

372

39

─

8

─

PSRK

91

1258

28

5

955

82

VTPR

104

347

71

3

276

104

For the extension of the experimental data base for the revision of already existing group interaction parameters as well as for fitting of new group interaction parameters, systematic experimental measurements are performed. For the UNIFAC Consortium delivery 2017, 17 vapor-liquid equilibrium data sets, 28 excess enthalpy data sets and 4 solid-liquid equilibrium data sets of binary systems have been measured over the whole concentration range.